Q.1. Consider the following statements regarding the ‘Edge Effect’ in ecology :
1. It refers to changes in population that occur at the boundary of two habitats.
2. The number of species and population density of some of species are much less than either habitat.
1. It refers to changes in population that occur at the boundary of two habitats.
2. The number of species and population density of some of species are much less than either habitat.
Which of the above statements is/are correct ?
Anonymous Quiz
41%
a) 1 only
21%
b) 2 only
34%
c) Both 1 and 2
4%
d) Neither 1 nor 2
Q.2. Consider the following statements regarding Niche :
1. It refers to the unique functional role and position of a species in its habitat or ecosystem.
2. Specialists are species that have a broad niche.
1. It refers to the unique functional role and position of a species in its habitat or ecosystem.
2. Specialists are species that have a broad niche.
Which of the statements given above is/are correct ?
Anonymous Quiz
47%
a) 1 only
13%
b) 2 only
38%
c) Both 1 and 2
2%
d) Neither 1 nor 2
Q.2.Consider the following statements regarding Liebig's Law of the Minimum :
1. It states that the growth of an organism is determined by the scarcest resource and not by the total available resources.
2. Increasing all nutrients equally always leads to proportional growth in plants.
1. It states that the growth of an organism is determined by the scarcest resource and not by the total available resources.
2. Increasing all nutrients equally always leads to proportional growth in plants.
Which of the statements given above is/are correct ?
Anonymous Quiz
44%
a) 1 only
20%
b) 2 only
31%
c) Both 1 and 2
5%
d) Neither 1 nor 2
Q.1. Consider the following statements regarding different Ecotones :
1. Alpine meadows represent an
ecotone between montane forests
and glaciers.
2. Mangrove forests represent an
ecotone between forest and desert
ecosystems.
3. An estuary is an ecotone that
supports both freshwater and
marine species.
1. Alpine meadows represent an
ecotone between montane forests
and glaciers.
2. Mangrove forests represent an
ecotone between forest and desert
ecosystems.
3. An estuary is an ecotone that
supports both freshwater and
marine species.
How many of the above statements is/are correct ?
Anonymous Quiz
16%
a) Only one
64%
b) Only two
19%
c) Only three
2%
d) None of the above are correct
Q.2. Consider the following statements regarding Niche Differentiation :
1. It allows two or more species with similar requirements to coexist by minimizing direct competition.
2. It might lead to Competitive Exclusion.
3. Darwin's finches evolving different beak shapes on the Galápagos Islands is an example of Niche differentiation.
1. It allows two or more species with similar requirements to coexist by minimizing direct competition.
2. It might lead to Competitive Exclusion.
3. Darwin's finches evolving different beak shapes on the Galápagos Islands is an example of Niche differentiation.
Which of the statements given above is/are correct ?
Anonymous Quiz
24%
a) 1 and 3
28%
b) 1 and 2
24%
c) 2 and 3
24%
d) 1,2 and 3
Q.3. Consider the following statements. regarding Photosynthetically Active Radiation (PAR):
1. PAR refers to the portion of solar radiation between 400 to 700 nanometers used in photosynthesis.
2. Nearly 50% of the total solar radiation that reaches Earth's surface is PAR.
3. Green plants capture about 2-10% of the PAR to synthesize food.
1. PAR refers to the portion of solar radiation between 400 to 700 nanometers used in photosynthesis.
2. Nearly 50% of the total solar radiation that reaches Earth's surface is PAR.
3. Green plants capture about 2-10% of the PAR to synthesize food.
Which of the statements given above is/are correct ?
Anonymous Quiz
37%
a) 1 and 3
22%
b) 1 and 2
21%
c) 2 and 3
20%
d) 1,2 and 3
Deconstructing Answers for UPSC Mains
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What will be covered:
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Live session on how to approach and write better Mains answers.
What will be covered:
- Breaking down UPSC questions
- Understanding question demand
- Managing space, time & word limit
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Q.1. Consider the following pairs :
1.Tenothermal - Narrow tolerance to temperature
2. Euryhaline - Wide tolerance to
salinity
3. Tenophagic - Wide dietary range
4. Euryecious - Wide habitat
adaptability
1.Tenothermal - Narrow tolerance to temperature
2. Euryhaline - Wide tolerance to
salinity
3. Tenophagic - Wide dietary range
4. Euryecious - Wide habitat
adaptability
Which of the pairs given above are correctly matched?
Anonymous Quiz
29%
a) 1, 2 and 4 only
28%
b) 1 and 3 only
28%
c) 2, 3 and 4 only
15%
d) 1, 2, 3 and 4
Q.2. With reference to human physiological responses to high altitudes, consider the following adaptations :
1. Increased red blood cell production
2. Increased oxygen-binding affinity of haemoglobin
3. Increased breathing rate to conserve energy
1. Increased red blood cell production
2. Increased oxygen-binding affinity of haemoglobin
3. Increased breathing rate to conserve energy